Malware Analysis Report

2025-03-15 06:21

Sample ID 240928-j6nbfsyakb
Target 6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a.exe
SHA256 6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a
Tags
hacked njrat discovery evasion persistence privilege_escalation trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a

Threat Level: Known bad

The file 6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a.exe was found to be: Known bad.

Malicious Activity Summary

hacked njrat discovery evasion persistence privilege_escalation trojan

Njrat family

njRAT/Bladabindi

Modifies Windows Firewall

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Event Triggered Execution: Netsh Helper DLL

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-28 08:16

Signatures

Njrat family

njrat

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-28 08:16

Reported

2024-09-28 08:19

Platform

win7-20240903-en

Max time kernel

150s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A

Enumerates physical storage devices

Event Triggered Execution: Netsh Helper DLL

persistence privilege_escalation
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key queried \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\netsh.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\System.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a.exe

"C:\Users\Admin\AppData\Local\Temp\6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a.exe"

C:\Users\Admin\AppData\Local\Temp\System.exe

"C:\Users\Admin\AppData\Local\Temp\System.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\System.exe" "System.exe" ENABLE

Network

Country Destination Domain Proto
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp

Files

memory/1688-0-0x0000000074211000-0x0000000074212000-memory.dmp

memory/1688-2-0x0000000074210000-0x00000000747BB000-memory.dmp

memory/1688-1-0x0000000074210000-0x00000000747BB000-memory.dmp

\Users\Admin\AppData\Local\Temp\System.exe

MD5 9dfb2d75775a9cad7b1d6dbfede91d32
SHA1 611504ab2631e12c707a37615b5d51cc5522e3c9
SHA256 6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a
SHA512 e14c892eae262322f27d0b9062292d4d8d87325600d4c06c84c0019d2ba322dacfb922598b68ce905b14086582b2a2c41c08384988e0c12e4a9c60fff483be99

memory/1688-10-0x0000000074210000-0x00000000747BB000-memory.dmp

memory/2816-11-0x0000000074210000-0x00000000747BB000-memory.dmp

memory/2816-12-0x0000000074210000-0x00000000747BB000-memory.dmp

memory/2816-13-0x0000000074210000-0x00000000747BB000-memory.dmp

memory/2816-14-0x0000000074210000-0x00000000747BB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-28 08:16

Reported

2024-09-28 08:19

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A

Enumerates physical storage devices

Event Triggered Execution: Netsh Helper DLL

persistence privilege_escalation
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\netsh.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\System.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a.exe

"C:\Users\Admin\AppData\Local\Temp\6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a.exe"

C:\Users\Admin\AppData\Local\Temp\System.exe

"C:\Users\Admin\AppData\Local\Temp\System.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\System.exe" "System.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp

Files

memory/4748-0-0x0000000074B92000-0x0000000074B93000-memory.dmp

memory/4748-1-0x0000000074B90000-0x0000000075141000-memory.dmp

memory/4748-2-0x0000000074B90000-0x0000000075141000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\System.exe

MD5 9dfb2d75775a9cad7b1d6dbfede91d32
SHA1 611504ab2631e12c707a37615b5d51cc5522e3c9
SHA256 6fcfa488c67737f9dd617995bb0d67087feb4f84d6ee1fdd26a8fc1e01931b2a
SHA512 e14c892eae262322f27d0b9062292d4d8d87325600d4c06c84c0019d2ba322dacfb922598b68ce905b14086582b2a2c41c08384988e0c12e4a9c60fff483be99

memory/4596-12-0x0000000074B90000-0x0000000075141000-memory.dmp

memory/4596-14-0x0000000074B90000-0x0000000075141000-memory.dmp

memory/4748-13-0x0000000074B90000-0x0000000075141000-memory.dmp

memory/4596-15-0x0000000074B90000-0x0000000075141000-memory.dmp

memory/4596-16-0x0000000074B90000-0x0000000075141000-memory.dmp